net: use netdev_mc_count and netdev_mc_empty when appropriate

This patch replaces dev->mc_count in all drivers (hopefully I didn't miss
anything). Used spatch and did small tweaks and conding style changes when
it was suitable.

Jirka

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index b377300..da0985a 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -725,7 +725,7 @@
 {
 	board_info_t *db = netdev_priv(dev);
 	struct dev_mc_list *mcptr = dev->mc_list;
-	int mc_cnt = dev->mc_count;
+	int mc_cnt = netdev_mc_count(dev);
 	int i, oft;
 	u32 hash_val;
 	u16 hash_table[4];